是否可以将Webform网站设置为同时使用Windows身份验证和Azure广告身份验证

Question

是否可以设置一个网站表单网站以同时使用Windows身份验证和Azure广告身份验证？ 我们有一个旧的asp.net网站表单网站。我们在其上使用了Windows身份验证。我们添加了通过Azure AD对用户进行身份验证的可能性（我们使用了OWIN）。问题是我们只能设置一种身份验证：Windows或OWIN（azure广告），但是我们需要两者。 在web.config中，我添加了：

<authentication mode="Forms">
      <forms name="ccs_auth" loginUrl="sso.aspx" protection="All" path="/" timeout="45" cookieless="UseCookies"/>
    </authentication>
<location path="sso.aspx">
  <system.web>
    <authorization>
      <allow users="?,*" />
    </authorization>
  </system.web>
</location>

在IIS中，我允许sso.aspx页面进行“ Windows身份验证”和“表单身份验证”。我的想法是：当用户重定向到sso.aspx时，我从 System.Web.HttpContext.Current.Request.ServerVariables [“ LOGON_USER”] 获取登录名，然后在活动目录中检查该名称，然后尝试在我们的数据库中查找用户。如果未找到用户，则开始进行Azure活动目录身份验证，如果已通过身份验证，我们将尝试通过Azure AD声明在数据库中查找用户。 我在Startup.cs中的代码：

    public void Configuration(IAppBuilder app)
    {
        if (useAzureAd)
        {
            app.SetDefaultSignInAsAuthenticationType("ApplicationCookie");
            //app.SetDefaultSignInAsAuthenticationType(CookieAuthenticationDefaults.AuthenticationType);
            app.UseCookieAuthentication(new CookieAuthenticationOptions()
            {
                AuthenticationType = "ApplicationCookie",
                LoginPath = new PathString("/sso.aspx"),
                CookieSecure = CookieSecureOption.SameAsRequest
            });

            app.UseOpenIdConnectAuthentication(
              new OpenIdConnectAuthenticationOptions
              {
                  // Sets the ClientId, authority, RedirectUri as obtained from web.config
                  ClientId = clientId,
                  Authority = authority,
                  RedirectUri = redirectUri,
                  // PostLogoutRedirectUri is the page that users will be redirected to after sign-out. In this case, it is using the home page
                  PostLogoutRedirectUri = redirectUri,
                  Scope = OpenIdConnectScope.OpenIdProfile,
                  // ResponseType is set to request the id_token - which contains basic information about the signed-in user
                  ResponseType = OpenIdConnectResponseType.IdToken,
                  // ValidateIssuer set to false to allow personal and work accounts from any organization to sign in to your application
                  // To only allow users from a single organizations, set ValidateIssuer to true and 'tenant' setting in web.config to the tenant name
                  // To allow users from only a list of specific organizations, set ValidateIssuer to true and use ValidIssuers parameter 
                  TokenValidationParameters = new TokenValidationParameters()
                  {
                      ValidateIssuer = false
                  },
                  // OpenIdConnectAuthenticationNotifications configures OWIN to send notification of failed authentications to OnAuthenticationFailed method
                  Notifications = new OpenIdConnectAuthenticationNotifications
                  {
                      AuthenticationFailed = OnAuthenticationFailed
                  }
              });
        }
 }

结果我得到一个例外：

HTTP Error 404.15 - Not Found
The request filtering module is configured to deny a request where the query string is too long.

好像我的请求是无限重定向到sso.aspx：

Requested URL
   http://localhost:80/AzureAdWebForm/SSO.aspx?ReturnUrl=%2FAzureAdWebForm%2FSSO.aspx%3FReturnUrl%3D%252FAzureAdWebForm%252FSSO.aspx%253FReturnUrl%253D%25252FAzureAdWebForm%25252FSSO.aspx%25253FReturnUrl%25253D%2525252FAzureAdWebForm%2525252FSSO.aspx%2525253FReturnUrl%2525253D%252525252FAzureAdWebForm%252525252FSSO.aspx%252525253FReturnUrl%252525253D%25252525252FAzureAdWebForm%25252525252FSSO.aspx%25252525253FReturnUrl%25252525253D%2525252525252FAzureAdWebForm%2525252525252FSSO.aspx........................

如果我设置useAzureAd = false，则Windows身份验证可以正常工作。 如果我设置useAzureAd = true并从配置中删除<authentication mode="Forms">-Azure AD正常运行

我的错误在哪里？是否可以在网站表单网站中同时使用Windows身份验证和Azure广告？